Guitar strap



FIG. 1 is a perspective view of a guitar strap showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof; the undisclosed left side elevational view being a mirror image thereof; and,

FIG. 5 is a bottom plan view thereof; the undisclosed top plan view being a mirror image thereof. 

The ornamental design for a guitar strap, as shown and described. 